I have learnt that you don't have to always go to special places or do grand gestures to be romantic.
One of the sweetest things, among many, that my SO did for me was when I fell down the stairs at work. Ironically we were "text-fighting" and at that moment, I slipped and used my hand to steady my fall which left me with scrapes.
His next text was weirdly "are you okay?" , at which point I shared a picture of my bloodied hand.
He insisted on coming to pick me up - which I refused because I like to be independent. However he still came around and cleaned up my wound, bandaged my fingers and kissed them.
That's when I knew I really loved him. He's taken me to some really special events - football and basketball games, musicals, plays and concerts. I love doing all of that with him. But it's also the very mundane things - like helping me move furniture to my new place, staying up late so he knows I reached home safe (when I've been out), spending hours fixing and polishing a guitar for me...
If I think about what I have done to be romantic compared to him, it may not be the same in quantity. I have taken him to a concert, the symphony and bought him gifts.
But I show my care for him in other ways - trying to understand what he likes - music, sports, books. I try to support him in every way.
The one thing I did - from my last apartment when I would walk to his place, I would stop by a shop and bring him chai. He's not a fan of coffee. Now that I've moved (and live pretty close to him), I don't go by the same place. I don't know - I'll have to think of something romantic to do now ^_^ .